SIGNALLING AND CONTROLLING DEVICE FOR MAGNETIC TAPE APPARATUS

摘要

An apparatus for monitoring various conditions of tape feed in a magnetic tape transport as indicated by the take-up reel speed. A commutator detects the speed of the take-up reel and controls a multivibrator which deactivates the tape transport drive motor and flashes an alarm lamp when the take-up reel speed, as represented by the detector output, deviates from a preselected norm.